As mentioned above. Get the aircabinman kit from ebay, you will have all of the OEM parts you need at the best price around. Under $300.00
15 Piece 3.4L engine TIMING BELT KIT WATER PUMP Genuine & OE Manufacture Parts! | eBay
I'm not sure how much a shop will charge you in labor to install this in North Cal, but when I shopped around here in Canada it was around $500-$600 (CAD), but they also warned me that if the crank and cam seals needed replacement, then there would be a little bit more labor involved. So, maybe around $400 USD for labor?
Nothing ever came of it as I still have the kit in my Garage at the moment. I'm not gonna bother having it replaced until either the timing belt or water pump give out (or I just happen to have some extra cash to throw on the install.)